发明名称 BRACKET FOR COUNTERBALANCED GARAGE DOOR
摘要 An upward acting sectional door formed of rectangular door sections which are interconnected to form a closure over a door opening. Opposed somewhat L-shaped bottom brackets are secured to opposed lower side edges of the bottom door section by fasteners which are not easily accessible for removal when the door is assembled and disposed between adjacent guide tracks. Opposed guide rollers connected to counterbalance cables are partially supported by the brackets and transfer upward lifting forces to the door through the brackets.
申请公布号 CA2226706(A1) 申请公布日期 1998.07.29
申请号 CA19982226706 申请日期 1998.01.13
申请人 OVERHEAD DOOR CORPORATION 发明人 GRISHAM, JAMES L.;BOUCHER, DAVID SCOTT
分类号 E06B9/17;E05D15/16;E05D15/24;E06B9/02;E06B9/58;E06B9/62;(IPC1-7):E05D15/00;E06B3/48;E06B3/50 主分类号 E06B9/17
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